100 BL Upgrade Glitched?

Well, since they just upgraded the BL slots to 100, I decided to go and upgrade mine a bit. I'm talking to a friend who is on my BL via whispers at the time. So, once I upgrade it, the friend whispers me saying that it shows me as offline on his BL. I didn't delete him, only simply upgraded my BL. It was a simple fix, just relogging. Just watch out for it in case it happens to you.